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<span id="SECNDS-_002d_002d_002d-Time-function"></span><h3 class="section">8.237 <code>SECNDS</code> &mdash; Time function</h3>
<span id="index-SECNDS"></span>
<span id="index-time_002c-elapsed-3"></span>
<span id="index-elapsed-time-1"></span>

<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p><code>SECNDS(X)</code> gets the time in seconds from the real-time system clock.
<var>X</var> is a reference time, also in seconds. If this is zero, the time in
seconds from midnight is returned. This function is non-standard and its
use is discouraged.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>GNU extension
</p>
</dd>
<dt><em>Class</em>:</dt>
<dd><p>Function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><p><code>RESULT = SECNDS (X)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>T</var></td><td width="70%">Shall be of type <code>REAL(4)</code>.</td></tr>
<tr><td width="15%"><var>X</var></td><td width="70%">Shall be of type <code>REAL(4)</code>.</td></tr>
</table>

</dd>
<dt><em>Return value</em>:</dt>
<dd><p>None
</p>
</dd>
<dt><em>Example</em>:</dt>
<dd><div class="example">
<pre class="example">program test_secnds
    integer :: i
    real(4) :: t1, t2
    print *, secnds (0.0)   ! seconds since midnight
    t1 = secnds (0.0)       ! reference time
    do i = 1, 10000000      ! do something
    end do
    t2 = secnds (t1)        ! elapsed time
    print *, &quot;Something took &quot;, t2, &quot; seconds.&quot;
end program test_secnds
</pre></div>
</dd>
</dl>






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